# Copyright (c) 2012 The Mirah project authors. All Rights Reserved.
# All contributing project authors may be found in the NOTICE file.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

package org.mirah.typer

# A minimal TypeFuture.
# It is resolved at creation and never updated.
class SimpleFuture; implements TypeFuture
  def initialize(type:ResolvedType)
    @type = type
  end
  def isResolved() true end
  def resolve() @type end
  def onUpdate(listener)
    listener.updated(self, @type)
    listener
  end
  def removeListener(listener); end
  def dump(out)
    out.writeLine("#{resolve}")
  end
  def getComponents
    {}
  end
  def toString
    "<SimpleFuture: #{resolve}>"
  end
end
